-
公开(公告)号：US20120123262A1
公开(公告)日：2012-05-17
申请号：US13379741
申请日：2010-06-30
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , A61B5/0048 , A61B5/0051 , A61B8/085 , A61B8/485 , A61B8/5223 , G01S7/52022
摘要： Shear Wave Dispersion Vibrometry (SDUV) is performed such that, after a single instance of their push pulse (218), a plurality of tracking pulses (222) are issued to sample, more than once, each of a plurality of locations (120, 148) on an associated monochromatic shear wave (116) in sampling that at least one of scans the plural locations in separate passes and, with a pulse of the plural tracking pulses, samples multiple ones of the plural locations concurrently. In a supplementary aspect, phase difference, for a given moment, is determined by taking into account intersample delay (156), if the determination relies on samples that are taken at different times.
摘要翻译： 执行剪切波分散振动波谱（SDUV），使得在其单次推送脉冲（218）之后，发出多个跟踪脉冲（222）以多次采样多个位置（120,120）中的每一个， 148）在相关联的单色剪切波（116）上进行采样，以便在单独的通过中的多个位置的扫描中的至少一个并且多个跟踪脉冲中的脉冲同时对多个位置中的多个位置进行采样。 在补充方面，如果确定依赖于在不同时间拍摄的样本，则通过考虑采样间延迟（156）来确定给定时刻的相位差。
-
公开(公告)号：US09125547B2
公开(公告)日：2015-09-08
申请号：US13379741
申请日：2010-06-23
CPC分类号： A61B8/00 , A61B5/0048 , A61B5/0051 , A61B8/085 , A61B8/485 , A61B8/5223 , G01S7/52022
摘要： Shear Wave Dispersion Vibrometry (SDUV) is performed such that, after a single instance of their push pulse (218), a plurality of tracking pulses (222) are issued to sample, more than once, each of a plurality of locations (120, 148) on an associated monochromatic shear wave (116) in sampling that at least one of scans the plural locations in separate passes and, with a pulse of the plural tracking pulses, samples multiple ones of the plural locations concurrently. In a supplementary aspect, phase difference, for a given moment, is determined by taking into account intersample delay (156), if the determination relies on samples that are taken at different times.
摘要翻译： 执行剪切波分散振动波谱（SDUV），使得在其单次推送脉冲（218）之后，发出多个跟踪脉冲（222）以多次采样多个位置（120,120）中的每一个， 148）在相关联的单色剪切波（116）上进行采样，以便在单独的通过中的多个位置的扫描中的至少一个并且多个跟踪脉冲中的脉冲同时对多个位置中的多个位置进行采样。 在补充方面，如果确定依赖于在不同时间拍摄的样本，则通过考虑采样间延迟（156）来确定给定时刻的相位差。
-
公开(公告)号：US08734352B2
公开(公告)日：2014-05-27
申请号：US13383471
申请日：2010-06-23
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , A61B5/0048 , A61B8/485 , G01S7/52042
摘要： Shear wave dispersion ultrasound vibrometry (SDUV) is implemented in some embodiments to form, from a single tracking pulse, in-parallel-directed receive lines (411-426) for making measurements of a monochromatic shear wave. In some embodiments, sampling is performed, over spatial locations by means of passes over the locations, in an interlaced pattern (600) for making measurements of the wave. In some embodiments, measurements are made of the wave and to the measurements are applied a bank of filters (S724) that are tuned to respective candidate wave speeds, all without the need to determine a difference between wave phases at different spatial locations (451-454).
摘要翻译： 在一些实施例中实施剪切波分散超声波振动测量（SDUV），以从单个跟踪脉冲形成用于进行单色剪切波的测量的并行导向的接收线（411-426）。 在一些实施例中，通过在位置上的通过在隔行扫描图案（600）中通过空间位置进行采样，以进行波的测量。 在一些实施例中，对波进行测量，并且将测量值应用于被调谐到各个候选波速的滤波器组（S724），全部不需要确定不同空间位置处的波相位之间的差（451- 454）。
-
公开(公告)号：US20120116220A1
公开(公告)日：2012-05-10
申请号：US13383471
申请日：2010-06-23
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , A61B5/0048 , A61B8/485 , G01S7/52042
摘要： Shear wave dispersion ultrasound vibrometry (SDUV) is implemented in some embodiments to form, from a single tracking pulse, in-parallel-directed receive lines (411-426) for making measurements of a monochromatic shear wave. In some embodiments, sampling is performed, over spatial locations by means of passes over the locations, in an interlaced pattern (600) for making measurements of the wave. In some embodiments, measurements are made of the wave and to the measurements are applied a bank of filters (S724) that are tuned to respective candidate wave speeds, all without the need to determine a difference between wave phases at different spatial locations (451-454).
摘要翻译： 在一些实施例中实施剪切波分散超声波振动测量（SDUV），以从单个跟踪脉冲形成用于进行单色剪切波的测量的并行导向的接收线（411-426）。 在一些实施例中，通过在位置上的通过在隔行扫描图案（600）中通过空间位置进行采样，以进行波的测量。 在一些实施例中，对波进行测量，并且将测量值应用于被调谐到各个候选波速的滤波器组（S724），全部不需要确定不同空间位置处的波相位之间的差（451- 454）。
-
公开(公告)号：US20120105645A1
公开(公告)日：2012-05-03
申请号：US13201245
申请日：2010-02-16
申请人： Michael R. Burcher , Yan S. Shi , Jean-Luc Robert
发明人： Michael R. Burcher , Yan S. Shi , Jean-Luc Robert
IPC分类号： G06K9/00
CPC分类号： G01S7/52028 , G01S7/5209 , G01S7/52095 , G01S15/8909 , G01S15/8956 , G10K11/30
摘要： The present invention relates to a method for producing an ultrasound image with a variable refractive lens (6) by transmitting a plurality of transmit beams (Tx1-Tx4) from an array of transducers (5) and receiving echo signals with the array of transducers (5) through the variable refractive lens (6) with an associated lens shape. By combining echo signals of receive lines from different transmit beams which are spatially related, the invention enable producing an image using image data. The invention is beneficial for high frequency ultrasonic imaging with the transducers being relatively larger sized than hitherto needed for high frequency applications. The array of transducers does not need to be “well-sampled”; i.e. having the width or size being comparably to the center wavelength of the ultrasonic signals to be received. This is particularly important at very high frequencies where well-sampled arrays would require very small elements that would be very challenging to manufacture.
摘要翻译： 本发明涉及通过从换能器阵列（5）发送多个发射波束（Tx1-Tx4）并用换能器阵列接收回波信号来产生具有可变折射透镜（6）的超声波图像的方法（ 5）通过具有相关镜片形状的可变折射透镜（6）。 通过组合来自与空间相关的不同发射波束的接收线路的回波信号，本发明能够使用图像数据产生图像。 本发明对于高频超声波成像是有益的，其中传感器的尺寸比迄今为止高频应用所需的尺寸相对更大。 换能器阵列不需要“采样良好”; 即具有与待接收的超声波信号的中心波长相同的宽度或尺寸。 这在非常高的频率下是特别重要的，其中采样阵列将需要非常小的元件，这对制造是非常具有挑战性的。
-
-
-
-
搜索结果
5 条记录 (耗时 0.034 秒)
